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Shigeru Nagasaki
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Nagoya, JP
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last 30 patents
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Patent Grant
Ceramic valve supporting structure in use for internal combustion e...
Patent number
4,838,218
Issue date
Jun 13, 1989
NGK Spark Plug Co., Ltd.
Yasushi Sato
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS